diff --git a/mingw-w64-cppunit/PKGBUILD b/mingw-w64-cppunit/PKGBUILD
index 9ee7de7cee..b81e5b7ce0 100644
--- a/mingw-w64-cppunit/PKGBUILD
+++ b/mingw-w64-cppunit/PKGBUILD
@@ -4,7 +4,7 @@ _realname=cppunit
 pkgbase=mingw-w64-${_realname}
 pkgname="${MINGW_PACKAGE_PREFIX}-${_realname}"
 pkgver=1.15.1
-pkgrel=1
+pkgrel=2
 pkgdesc="A C++ unit testing framework (mingw-w64)"
 arch=('any')
 mingw_arch=('mingw32' 'mingw64' 'ucrt64' 'clang64')
@@ -19,6 +19,8 @@ sha256sums=('89c5c6665337f56fd2db36bc3805a5619709d51fb136e51937072f63fcc717a7')
 
 prepare() {
   cd "${srcdir}"/${_realname}-${pkgver}
+  # autoreconf to get updated libtool files, for clang support
+  autoreconf -fiv
 }
 
 build() {
diff --git a/mingw-w64-libmodplug/PKGBUILD b/mingw-w64-libmodplug/PKGBUILD
index c57e8827f4..8a30e7b26e 100644
--- a/mingw-w64-libmodplug/PKGBUILD
+++ b/mingw-w64-libmodplug/PKGBUILD
@@ -4,7 +4,7 @@ _realname=libmodplug
 pkgbase=mingw-w64-${_realname}
 pkgname="${MINGW_PACKAGE_PREFIX}-${_realname}"
 pkgver=0.8.9.0
-pkgrel=2
+pkgrel=3
 pkgdesc="A MOD playing library (mingw-w64)"
 arch=('any')
 mingw_arch=('mingw32' 'mingw64' 'ucrt64' 'clang64')
@@ -23,6 +23,8 @@ prepare() {
   cd "${srcdir}/${_realname}-${pkgver}"
 
   patch -p1 -i "${srcdir}/0002-fix-pkgconfig-file.patch"
+  # autoreconf to get updated libtool files, for clang support
+  autoreconf -fiv
 }
 
 build() {